Home / 39,230.22-54,138.76-21,326.44

Finding the Fourth Proportional to 39,230.22, 54,138.76 and 21,326.44

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Solution

The fourth proportional to 39,230.22, 54,138.76 and 21,326.44 is: 29,431.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,230.22 : 54,138.76 = 21,326.44 : x
  2. Step 2: Convert to fraction form
    39,230.22/54,138.76 = 21,326.44/x
  3. Step 3: Cross multiply
    39,230.22x = 54,138.76 × 21,326.44
  4. Step 4: Simplify right side
    39,230.22x = 1,154,587,016.81
  5. Step 5: Solve for x
    x = 1,154,587,016.81/39,230.22
  6. Step 6: Final answer
    x = 29,431.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.